how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)

0 Answers  

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A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

1 Answers  

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what happens if sf6ckt breaker gas pressure is high or low about the actual rating of gas pressure(5kg/cm2)

2 Answers  

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what is the difference between ac and electric

1 Answers  

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I need to compare the energy consumption of an industrial machine before and after improving. Shall I compare the apparent power or the active power? I know usually factories use compensated capacitors (or other similar components) to compensate the reactive power, so if I use the apparent power, it's not the real power consumed.

2 Answers  

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can motors working at parallel operation like D.G set and transformers? It means asking about two motors coupled with same load???

1 Answers  

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How can transformer winding insulation be measured (Delta & Star Connections)?

3 Answers  

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Transformer not operated in dc ! why?

10 Answers  

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What is DC power factor??

2 Answers   HCL,

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How Can we calculate the rating of a cable?Show the formula?

2 Answers   Jindal,

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Is there chopping current in resistive circuit

0 Answers  

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what is the formula for calculation of sac?

4 Answers   TCS,

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